<template>
	<view class="goods-detail-container" v-if="goods_info.goods_name">
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000">
			<swiper-item v-for="(item,index) in goods_info.pics" :key="index">
				<image :src="item.pics_big" mode="aspectFill" @click="preview(index)"></image>
			</swiper-item>
		</swiper>
		<!-- 商品信息区域 -->
		<view class="goods-info-box">
			<!-- 商品价格 -->
			<view class="price">
				￥{{goods_info.goods_price}}
			</view>
			<!-- 商品信息主体区域 -->
			<view class="goods-info-body">
				<!-- 商品名称 -->
				<view class="goods-name">
					{{goods_info.goods_name}}
				</view>
				<!-- 收藏 -->
				<view class="favi">
					<uni-icons type="star" size="18" color="gray"></uni-icons>
					<text>收藏</text>
				</view>
			</view>
			<!-- 运费 -->
			<view class="yf">
				快递：免运费
			</view>
		</view>
		<!-- 商品详情 -->
		<rich-text :nodes="goods_info.goods_introduce"></rich-text>
		<view class="goods_nav">
			<uni-goods-nav @click="onClick" @buttonClick="buttonClick" :fill="true" :options="options"
				:buttonGroup="buttonGroup"></uni-goods-nav>
		</view>
	</view>
</template>

<script setup>
	import {
		useCartStore
	} from '@/store/cart.js'
	const cartStore = useCartStore()
	import {
		onLoad
	} from '@dcloudio/uni-app'
	import {
		ref,
		computed,
		watch
	} from 'vue';
	const total = computed(()=>{
		return cartStore.total
	})
	const goods_info = ref({})
	const options = ref([{
		icon: 'shop',
		text: '店铺'
	}, {
		icon: 'cart',
		text: '购物车',
		info: 0
	}])
	const buttonGroup = ref([{
			text: '加入购物车',
			backgroundColor: '#ff0000',
			color: '#fff'
		},
		{
			text: '立即购买',
			backgroundColor: '#ffa200',
			color: '#fff'
		}
	])
	watch(total, (newval) => {
		const findResult = options.value.find((x) => x.text === '购物车')
		if (findResult) {
			findResult.info = newval
		}
	},{immediate: true})
	onLoad((options) => {
		const goods_id = options.goods_id
		getGoodsDetail(goods_id)
	})
	const getGoodsDetail = async (goods_id) => {
		const {
			data: res
		} = await
		uni.$http.get('/api/public/v1/goods/detail', {
			goods_id
		})
		if (res.meta.status !== 200) return uni.$showMsg()
		res.message.goods_introduce = res.message.goods_introduce.replace(/<img/g, '<img style="display:block;" ')
			.replace(/webp/g, 'jpg')

		goods_info.value = res.message
	}
	const preview = (index) => {
		uni.previewImage({
			current: index,
			urls: goods_info.value.pics.map(x => x.pics_big)
		})
	}
	const onClick = (e) => {
		if (e.content.text === '购物车') {
			// 切换到购物车页面
			uni.switchTab({
				url: '/pages/cart/cart'
			})
		}

	}
	const buttonClick = (e) => {
			if (e.content.text === '加入购物车') {
				const goods = {
					goods_id: goods_info.value.goods_id, // 商品的Id
					goods_name: goods_info.value.goods_name, // 商品的名称
					goods_price: goods_info.value.goods_price, // 商品的价格
					goods_count: 1, // 商品的数量
					goods_small_logo: goods_info.value.goods_small_logo, // 商品的图片
					goods_state: true // 商品的勾选状态
				}
				cartStore.addToCart(goods)
			}
	}

</script>

<style lang="scss" scoped>
	.goods-detail-container {
		padding-bottom: 50px;
	}

	swiper {
		height: 750rpx;

		image {
			height: 100%;
			width: 100%;
		}
	}

	.goods-info-box {
		padding: 10px;
		padding-right: 0;

		.price {
			color: #c00000;
			font-size: 18px;
			margin: 10px 0;
		}

		.goods-info-body {
			display: flex;
			justify-content: space-between;

			.goods-name {
				font-size: 13px;
				padding-right: 10px;
			}

			.favi {
				width: 120px;
				font-size: 12px;
				display: flex;
				flex-direction: column;
				justify-content: center;
				align-items: center;
				border-left: 1px solid #efefef;
				color: gray;
			}
		}

		.yf {
			margin: 10px 0;
			font-size: 12px;
			color: gray;
		}
	}

	.goods_nav {
		position: fixed;
		bottom: 0;
		left: 0;
		width: 100%;
	}
</style>